Question

Qual é a expressão algébrica que representa o perímetro?​ pfvv me ajudemm​

Answer 1

Explicação passo-a-passo:

$1.a)p = a + b + c + d \\ p = 6x + 6x + 5x + 40 + 5x + 40 \\ p = 22x + 80 \\ \\ b)p = 22 \times 16 + 80 \\ p = 352 + 80 = 432$

$2)x = 2 \\ 2x {}^{2} - x + 3 \\ 2 \times ( - 2) {}^{2} - ( - 2) + 3 \\ 2 \times 4 - 2 + 3 \\ 8 - 2 + 3 = 9\\ \\ x = 3 \\ 2x {}^{2} - x + 3 \\ 2 \times 3 {}^{2} - 3 + 3 \\ 2 \times 9 - 3 + 3 \\ 18 - 3 + 3 = 18$

Answer 2

Resposta:

passo-a-passo:

\begin{gathered}1.a)p = a + b + c + d \\ p = 6x + 6x + 5x + 40 + 5x + 40 \\ p = 22x + 80 \\ \\ b)p = 22 \times 16 + 80 \\ p = 352 + 80 = 432\end{gathered}

1.a)p=a+b+c+d

p=6x+6x+5x+40+5x+40

p=22x+80

b)p=22×16+80

p=352+80=432

\begin{gathered}2)x = 2 \\ 2x {}^{2} - x + 3 \\ 2 \times ( - 2) {}^{2} - ( - 2) + 3 \\ 2 \times 4 - 2 + 3 \\ 8 - 2 + 3 = 9\\ \\ x = 3 \\ 2x {}^{2} - x + 3 \\ 2 \times 3 {}^{2} - 3 + 3 \\ 2 \times 9 - 3 + 3 \\ 18 - 3 + 3 = 18 \end{gathered}

2)x=2

2x

2

−x+3

2×(−2)

2

−(−2)+3

2×4−2+3

8−2+3=9

x=3

2x

2

−x+3

2×3

2

−3+3

2×9−3+3

18−3+3=18